[%c_effect c6;square;c6;type;Inaccuracy;persistent;true]
23. a2a3 It's understandable that Grischuk stops the pawn, although 23... g8f8 [%c_effect f8;square;f8;type;Mistake;persistent;true] 24. e2d4  24... e6e5  25. d4c2 Now Black has no more attack since the pawns are paralyzed. Meanwhile, White prepares to advance in the center.